Troubleshooting Tips; For Service - Rheem RTE 3 Use & Care Manual

Electric tankless water heater
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Before You Call For Service...

Troubleshooting Tips

Save time and money! Review the chart on this page first and you may not need to call for
service.
Problem
Not enough or
no hot water
Water is too hot
CAUTION: For your safety DO NOT attempt repair of electrical wiring, thermostats, heating
!
elements or other safety devices. Refer repairs to qualified service personnel.
14
Possible Causes
A fuse is blown or a circuit
breaker tripped.
Electric supply may be off.
The thermostat may
be set set too low.
Leaking or open hot
water faucets.
Electric service to your
home may be interrupted.
Improper wiring.
Manual reset limit (ECO).
Cold water inlet
temperature may be
colder during the
winter months.
The thermostat
is set too high.
What To Do
Replace fuse or reset circuit breaker.
Make sure electric supply to water heater and
disconnect switch, if used, are in the ON position.
See the Temperature regulation of the water heater
section of this manual.
Make sure all faucets are closed.
Contact the local electric utility.
See the Installing the water heater section of this
manual.
See the Temperature regulation of the water heater
section of this manual.
This is normal. The colder inlet water takes longer
to heat.
See the Temperature regulation of the water heater
section of this manual.

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